Switch-bod



J. C. MOCK. swncu non. APPLICATION FILED NOV- 23| 19M.

Patented Aug. 22, 1916.

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J. 0.; MOCK.

Swncu ROD. APPLICATION FILED NOV- 23' 1914.

Patented Aug. 22, 1916.

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Mp3 v JAMES C. MOCK, OF DETROIT, MICHIGAN.

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Application filed November 23, 1814;.

1/ '0 cZZ whom it may concern Be it known that I, JAMES C. Moon, a citizen of the United States, residing at Detroit, in the county of /Vayneand State of Michigan, have invented certain new and useful Improvements in Switch'Rods, of which the following is a specification.

My invention is an improved switch rod, and pertains particularly to the means of attaching the switch point and clip to the main body of the switch rod.

In the drawings; Figure 1 is an elevation view partly in section of my improved switch rod and clip; Fig. 2 is a plan view of the same; Fig. 3 is a fragmentary sectional view of a modified form of my invention; Fig. 4: is a plan view of the structure shown in Fig. 3; Fig. 5 is a view in elevation and partly in section of another modification; Fig. 6 is a plan view of the structure shown in Fig. 5; Fig. 7 is a perspective view of the clip forming part of the structure shown in Fig. 5; Fig. 8 is a perspective View of apart which coacts with the clip forming part of the structure shown in Fig. 5; Fig. 9 is an elevation view partly in section of another form of my invention; and Fig. 10 is a plan view of the structure shown in Fig. 9.

Referring to Fig. 1, the switch rod 1 is provided with an upwardly projecting stud Q'which, in the form of the invention illusstrated, is integral with the base plate 3 which is fastened to the switch rod 1 by means of rivets 4. The stud 2 is perferably circular and tapers upwardly in the conical form illustrated. The point rail 5 coacts with the continuous rail 6 in the usual manner and is secured to the clip 7 by means of a bolt 8, as usual. The clip 7 is formed upon its under side with a conical socket 9 adapted to fit over the stud 2'and a bolt hole extends through the switch rod, stud and upper wall of the socket 9 in the clip 7 for the reception of a bolt 10, by means of which the parts enumerated are secured together.

My improved construction, as above described, has the advantage of relieving the bolt 10 from the strains imposed upon the clip due to the pressure of passing wheels upon the switch point, and has the further advantage that these strains aretransmitted from the switch pointto'the coacting rigid part of the switch rod in a. more nearly direct line than is the case with the form of switch rod connections ordinarily employed. Ordinarily the switch rod is pro- Specification of Letters Patent.

Patented An fl Serial llo. 873,623.

vided with a jaw upon its upper side between which jaw and the body of the switch red the base of the clip is received and held by means of a bolt. When so constructed the point of connection between the clip and the switch rod is located immediately above the upper surface of the body of the switch rod in the plane occupied by the base plate 3 of my improved structure. In my improved form of construction the point of connection between the clip 7 and the courting rigid part of the switch rod is at a higher plane, namely in the position occupied by the upper member of the jaw forming part of the structure in common use. B se elevating the point of connection between the clip and the coacting rigid part of the switch rod, I bring this point of connection more nearly in direct line with the horizontal thrusts imposed upon the clip by the shock of passing wheels upon the switch point, and I have found that this is a material advantage in increasing the durability of such structures.

In the form of the device shown in Fi 3, the stud 2 projects downwardly from the clip 7 and the switch rod 1 has on its upper surface an upwardly opening socket 9 to receive the stud upon the clip. I have illus trated the socket 9 as formed in member secured to the switch rod by means of rivets. This form of the device is simply a reversal of the form shown in Figs. 1 and 2 in having the stud upon the clip and the socketin the switch rod and has all of the advantages referred to in connection with Figs. 1 and 2.

In the device illustrated in Figs. 5 to 8, inclusive, the stud takes the form of two separated parts 1111, each of which is preferably concentric upon its exterior surface 12 with the bolt 13. In this form of my invention the clip 7 is similarly formed with separate walls 14: having inner surfaces 15 which are also preferably concentric with the bolt, the walls 14 forming an open ended socket which fits over the exterior of the walls 11 upon the switch rod or upon a plate rigidly secured to the switch rod. This form of construction permits more extended coacting surfaces at the point of connection between the clip and the switch rod than do the forms of the device illustrated in Fi 1. to 4., in which latter forms the studs and sockets are also preferably concentric with the bolts, the concentric arrangement permitting such slight rotation of the clip as may be necessary to accommodate its connection with the switch point.

In Figs. 9 and 10 I have shown a still further modification in which the clip 7 is provided with the downwardly projecting stud 15 received between upwardly projecting walls 16 formed upon a plate 17 secured to the switch rod by means of rivets. The walls 16 are constructed upon a large radius to give an extended surface of contact between the coacting parts of the clip and switch rod and these coacting surfaces are, as in the previous forms, preferably concentric with the bolt by which the parts are secured together.

While I have illustrated several embodiments of my invention it will be apparent that the principle of my invention may be utilized without precise adherence to any of the forms illustrated.

\Vhat I claim is:

1. In a device of the class described, a switch rod, a plate secured to said rod and having an upwardly projecting stud, a switch point clip having a socket in its lower side fitting over said stud, and a bolt holding said parts in assembled position, whereby horizontally acting forces are transmitted from said clip to said rod through the coacting surfaces of said stud and socket.

2. In a. device of the class described, a switch rod, a plate secured to said rod, a switch point clip, one of said last-named parts being provided with a socket, a stud upon the other of said last-named parts, said stud being seated in said socket, and a bolt holding the parts in assembled relation, whereby horizontally acting forces are transmitted from said clip to said rod through the coacting surfaces of said stud and socket.

3. In a device of the class described, a switch rod, a plate secured to said rod, a switch point clip, and a bolt holding said parts in assembled relation, said plate and clip having coacting upwardly extending arcuate surfaces through which horizontally acting forces are transmitted from the clip to the rod.

'1. In a device of the class described, a switch rod, a plate secured to said rod and having an upwardly projecting stud, a switch point clip carrying a part adapted to fit over and engage said stud, and a bolt holding the parts in assembled position, whereby horizontally acting forces are transmitted from the clip to the rod through the coacting surfaces of said stud and the part carried by said clip.

In testimony whereof, I have subscribed my name.

JAMES C. MOCK.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, I). 0. 

